I just ordered a Crucial MX200 1GB SSD on a daily deal at Amazon for $280. Now I am confusing myself deciding how to install it in my late 2012 Mini which currently has a 512 GB spinning disk HDD. Would appreciate any advice. option 1: remove 512, replace with 1GB SSD (easiest installation, fastest speeds, lowest power consumption and heat). As additional storage needed, add external multi TB HDD. option 2: buy OWC data doubler kit and install 1GB SSD with existing 512 GB drive, reformat as fusion drive, (+$30 for kit, more complicated installation) option 3: buy OWC data doubler kit and buy new 1GB HDD and install with 1 GB SSD as fusion drive for total 2tb internal (+$100 = $30 kit and $70 WD red 1TB drive) I have an intrinsic compulsion to maximize the internal storage... and also not to just discard a current working 512 GB drive..... but have read that the fusion drives are slower than SSD (and marginally more failure prone and energy consumptive due to spinning disk ?) so I should just leave it as pure SSD internally. However I pause on what to do with existing 512 GB drive since buying enclosure to use existing 512 K drive seems hardly more efficient than just buying new multi TB external drive since they're so cheap these days. But if I'm doing the job of installing the data doubler kit then I think I should use a new 1 TB HDD instead of the old 512. And so I go round and round in a circle. Any thoughts to get me back on a straight line ?